noun🔗ShareルーメンIn the International System of Units, the derived unit of luminous flux; the light that is emitted in a solid angle of one steradian from a source of one candela. Symbol: lm."The new light bulb in the kitchen is much brighter; it emits 800 lumens. "台所の新しい電球はとても明るく、800ルーメンを発します。physicsenergyunitscienceChat with AIVocabulary GamePractice Reading
noun🔗Share内腔The cavity or channel within a tube or tubular organ."The doctor examined the lumens of the patient's intestines to look for any blockages. "医者は詰まりがないか調べるために、患者の腸の内腔を検査しました。anatomyorganphysiologymedicinebiologyChat with AIVocabulary GamePractice Reading
noun🔗Share内腔The cavity bounded by a plant cell wall."Under a microscope, the lumens of the plant cells looked like tiny empty compartments. "顕微鏡下では、植物細胞の内腔は小さな空の区画のように見えました。plantbiologypartChat with AIVocabulary GamePractice Reading
noun🔗Share内腔The bore of a tube such as a hollow needle or catheter."The doctor checked the lumens of the IV catheter to make sure they weren't blocked. "医師は、IVカテーテルの内腔が詰まっていないことを確認しました。medicineanatomyparttechnicaldeviceChat with AIVocabulary GamePractice Reading
